Guide for boring doors for locks



(No Model.)

- I G. F. NICHOLS.

GUIDE FOR BORING DOORS FOR LOO'KS. No. 310,710.

Patented Jan; 13, 1885 I Unrrn TPATF Parent rrrcie.

CHARLES F. NICHOLS, OF SAN FRANCISCO, CALIFORNIA.

GUIDE FOR BORING DOORS FOR LOCKS.

SPECIFICATION forming part of Letters Patent No. 310,710, dated January 13, 1885.

Application filed October 2, 1854. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES F. NIcrroLs, of the city and county of San Francisco, and State of California, have invented an Improvement in Guides for Boring Doors for Locks; and I hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to a new and useful guide for boring doors for locks; and it consists in a frame having adjustable clamps for securing it to the door, in a laterally-ad justable standard or rack-bar in the front of the frame, and in a yertically-adjustable socketguide for the auger-bit, said guide being carried by the rack-bar, and adapted by the lateral adjustment of the bar to center the bit, and by its own vertical movement to direct the bit up and down, and in vertically and horizontally adjustable socket-guides on the side of the frame adapted to receive and direct the auger-bit to make the hole for the knob-shank and the key-hole.

It consists, further,in details of construction, all of which I shall hereinafter fully explain.

The object of my invention is to provide a simple and effective device for accurately boring the holes in a door to prepare it for the lock.

Referring to the accompanying drawings, Figure l is a view of my invention, showing its application to a door. Fig. 2 is a perspective of the socket-guide D.

A is the frame, the separated arms a of which are adapted to embrace the door and tobe secured thereto by the screw-clamps B, opcrating from one side. I11 the front of the frame above and below are slotted strips a, between which is mounted the standard or vertical rack-bar 0, adapted to be laterally adjusted in the slotted strips a, and set in any position by means of the nuts 0 on the ends of the rackbar. Mounted upon this rack bar, and adapted to slide up and down thereon, is the socket-guide D, through the hole or socket of which the auger-bit is adapted to pass. The back of the socket-guide D is provided with a spring catch or pawl, d, which is adapted to engage with the teeth of the rack-bar 0, whereby said socket-guide, when adjusted, may be set to the proper position. Upon the side of the frame is a vertical strip, E, provided with an elongated slot, e.

F is a socket-guide adapted to receive the auger-bit and provided with a stem, f, horizontally slotted, as shown. A pin or bolt, G, passes through the slot 6 of the vertical strip E, and through the slot of the stemf of the socket-guide, and receives the nut g. By this means the socket-guide F be vertically and horizontally adjusted and set in any suitable position by means of the nut 9. Below the socket-guide F is a similar though smaller socket-guide, H, having a horizontally-slotted stem, h, through which abolt, G, passes, and is adapted to receive a nut, whereby said socket-guide H may also be vertically and horizontally adjusted.

The application and operation of my device is shown in Fig. 1. The frame A is clamped to the door M, and the socket-guide D is raised to a suitable position for boring the first hole in the edge of the door. The lateral adjustment of the rack-bar 0 enables the auger-bit to be properly centered. The bit is passed loosely through the socket-guide D and the hole is bored. Guide D is then lowered to a position to adapt the bit to bore another hole just under the first, and so on down until. asuitable number of holes are bored in the edge of the door, which is then cut out with a chisel in the ordinary manner to form a mortise. The socket-guide F on the side of the frameis adjusted horizontally and vertically to the proper position, so that the auger-bit passes through said guide and will bore ahole in the proper position to receive the shank of the door-knob. Socket-guide H is similarly operated, whereby the hole for the key is made in a proper position.

In order to receive the auger-bit without any trouble, the socket-guides are made in two parts, the outer or upper part being hinged, as shown, to the other part and provided with suitable clasping device, (represented by the thumb-pin 1a,) whereby the two parts are held together. By opening the hinged part the bit may be inserted in the socket, and the hinged part being then closed the bit is confined and suitably guided.

The side sockets, F and II, may be made each double, as shown, the sockets being of different sizes to receive different sizes of bits.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a guide for boring doors for locks, a frame adapted to be clamped on the door, and a vertically and laterally adjustable socketguide mounted upon a vertical rack-bar and held in place by a spriug'catch, and carried by the frame in front and adapted to receive, di rect, and center an llllgGPblll to bore a number of holes in the edge of the door, substantially as herein described.

2. A guide for boring doors for looks, consisting of the frame A, adapted to be clamped to the door, the vertical rack-bar C in its front, and the socket-guide D for the auger-bit, and provided with a spring catch or pawl, d, ongaging with the rack, whereby it is adapted to be vertically adjusted, substantially as and for the purpose'herein described.

3. A guide for boring doors for looks, consisting of the frame A, adapted to be clamped to the door, the vertical rack-bar C, mounted in slotted strips a in the frame, and provided with nuts 0, whereby it may be laterally adjusted and set, and the socket-guide D for the auger-bit, said guide being provided with a spring catch or pawl, (Z, engaging with the rack, whereby'it may be vertically adjusted thereon, substantially as and for the purpose herein described.

4. In a guide for boring doors for locks, the frame A, having a side strip, E, connecting through the slotof said strip, and the nuts 9 g,

substantially as and for the purpose herein described.

5. In a guide for boring doors for looks, the frame A, having a vertically-slotted side strip, E, and the socket-guides F H, formed in two parts,hinged togetl1er, sai (1 guides having horizontally-slotted stems f 71, said guides being adjusted and set vertically and horizontally by means of bolts or pins GG and nuts 9 9, sub stantially as and for the purpose herein described.

(3. A guide for boring doors for looks, consisting ofthe frame A,having the screw-clamps 3, by which it is secured to the door, the latorally-adjustable rack-bar O on its front, the vertically-adjustable socket-guide D on the rac'lcbar, and the vertically and horizontally adjustable socketguides F H on theside of the frame, substantially as herein described.

In witness whereof I have hereunto set my hand.

CHARLES r. NICHOLS.

\Vitnesses:

S. H. NoUnsn, C. D. COLE. 

